a = 1
b = 2
a = a+b
b = a-b
a = a-b
print(a,b)

li = [32,55,75,1,-50]
for i in range(len(li)):
    # print(i)
    for g in range(i):
        # print('this is %d'%g)
        # print(len(li)-i)
        if li[g]<li[g+1]:
            a=li[g]
            li[g]=li[g+1]
            li[g+1]=a
print(li)
